Page 90 - Color Atlas of Biochemistry

Nucleotides and Nucleic Acids 81

A. Nucleic acid bases

O O Pyrimidine bases NH
H 2
C C C CH 3 C
N 3 4 5CH HN CH HN C N CH
6
HC 2 1 CH C CH C CH C CH
N O N O N O N
H H H

Pyrimidine Uracil (Ura) Thymine (Thy) Cytosine (Cyt)

Purine bases
H NH O
C N 2
N 1 6 5C 7 C C
8 CH N C N HN C N
HC 2 3 4 C 9 CH CH
N N HC C C C
H N N N N
2
H H N H
Purine Adenine (Ade) Guanine (Gua)

B. Nucleosides, nucleotides
O
NH
A 2 T
P C CH 3
N C C N HN C
T
HC C CH
C
5' N A CH O O N
HO CH 2 N 5'
O β O P O CH 2 β
1' P O
H H O 1'
H H H H
H H
OH OH
OH H
1. Adenosine (Ado) 2. 2'-Deoxythymidine 5'-monophosphate (dtMP)

C. Oligonucleotides, polynucleotides
Flavin O
To the 5' end C
H O F A HC NH U
H C C N C H O HC C
3
C C C N Phosphoric acid– O P O CH N O
anhydride bond 2
C C C C O O
H 3 C C N N O H H O
H CH 2 A H H H H N C C NH
HC
F C OH N RNA G
H
OH
O
C
C
H C OH N C O P O CH N N NH
Ribitol C N 2 2
H C OH O O H C O O
N C C H H
H 2 C O P O P O CH 2 N H
O H H
O O
H H Phosphoric acid O OH
Ribose diester bond
H H
To the 3' end
1. Flavin adenine dinucleotide OH OH
(FAD) 2. RNA (section)
Koolman, Color Atlas of Biochemistry, 2nd edition © 2005 Thieme
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